Cat box



FIG. 1 is a Top, left perspective view;

FIG. 2 is a Top plan view thereof;

FIG. 3 is a Side elevation view thereof;

FIG. 4 is a Front elevation view thereof;

FIG. 5 is a Bottom plan view thereof; and,

FIG. 6 is a Rear elevational view thereof. 

The ornamental design for a cat box, as shown and described. 